... logical, more energy-saving 3.Approval:EN15194 1. Crank Shaft Electric Bicycle with Own Exclusive Patent2. More Beautiful, more logical, more ... Efficlency In power Conversion.(Reduce Mechanical Loss), Highly Efficient In-Line Drive.4. Our motor has a wide range of ... without interfering with each other, which makes the structure of electric motor more compact7. High quality and most competitive price, ...